CLEANING INSTRUCTIONS: RINSE WITH COLD WATER IMMEDIATELY AFTER USE. REPEAT IF NEEDED. AIR DRY COMPLETELY BEFORE STORING. FOR HEAVY STAINS, SOAK OVERNIGHT AND REPEAT RINSING. NEVER USE DETERGENT OR SOLVENTS. USE 99% ISOPROPYL ALCOHOL ON A SOFT TOOTHBRUSH FOR TOUGH STAINS, AVOIDING SCREEN EDGES.